Screw driver



Patented Der, 2d, i822,

ti l "s le il;

' rea. l,

ANioianw` aNDnasoN, or Tacoma, wasHiNGroN.

SCREW DRIVER.

. ,Applicatonnled July 16,'1921. Serial Noltll.

.State of lVashington, have invented certain new` and-usefulImprovements in Screw Drivers, ol which the following is a speci-`iication. i

This invention relates to improvements in screw drivers, or the like,`and has for its principal object to provide a screw driver having aratchet driving handle that may be moved toa certain position, which permits operation ot the screw driver in the usual manner or to anotherlposition which permits it to be used for the purpose of driving throughthe ratchet mechanism.

Other objects of the invention reside in certain details of constructionof the device, which permits pressure to be applied to the driver whilethe yratchetmechanism is in use, and the locking mechanism for holdingthe handle against rotation and in'position while being used in theordinary manner.

ln accomplishing' these and other objects of the invention, l haveprovided the improved details of construction, the preferred forms ofwhich are illustrated in the accompanying drawings, wherein- Fig. 1 is aside view, of a screw driver constructed according to the presentinven-` tion.

Fig. 2 is a longitudinal, sectional view of the same.

Fig. 3 is a side view, showing the handle member moved to position foractuating the driver by means of the ratchet mechanism.

Fig. l is a transverse section, taken on the line 1-4 in Fig. 1,illustrating the manner of mounting the handle retaining latch.

Fig. 5 is a transverse sect-ionen the line 5-5 in Fig. 2.

Fig. 6 is a section on the line 6 6 in Fig.

1, showing the locking means whereby the tends through the handle andinto an annular groove 7 rabout the shank.

i Fixed on the stock 3, in spaced apartre lation, are collars 8l and 9provided on their adjacent edges with ratchet teeth 10 and 11. Alsomounted to rotate on the stock, between the collars 8 and 9, is a collar12: 'having teeth 18-13 at its opposite edges that may be moved, byshifting the collar longitudinally on the stock, into contact with vtheteeth 'of either 'ot' thecollars 8 or 9.

Pivot-ally fixed to the opposite sides lof the collar 12, by means ofscrews, or pins, 15-15, are the opposite side portions of a handle 16.This is provided with a longitudinal pocket 17 along one side, whereinthe handle member 5 is normally disposed, and slidably mounted on thehandle, adjacent its upper end, is a latch 'block 18 that may be movedso that its lower end will overlie the end of the pocket 17 and upperend of the handle 5 to prevent the handle 16 from folding outwardly. Theblock 18 is provided on its under side, with a rib 20 that isdove-tailedwithin a slot 21 formed within the handle and which holds theblock to the handle.

Fixed on the extension 4 of the stock 3, adjacent the collar 8, is asquared head 25 `which is adapted, when the handle 16 is in position asshown in Fig.l 1, to lit between the opposite side members `of thehandle, so that the stock 3 will be held thereby against rotation withinthe handle 16 when the latter is turned.

Assuming that the different parts of the device are so `constructed andassembled, in using the same in the manner in which screw drivers areordinarily used, the handle 16 is positioned to enclose the handlemember 5 and the rlatch 18 is adjusted tohold the parts in thisposition. Now since the squared head 25 that is iXed to the shank 4L,lits tightly between the opposite side members block 18 is moved`upwardly so that the j handle 16 will be released and can be moved to aposition perpendicular to the bit 1,'as

oppositely facing shown in llig@ rllhe handle 5 may then be grasperflandthrough it pressiuel may be applied'to hold thehit vl infpositionwhile it is rotated in either direction by operating thel handle 1G. Thedirection of `rotation depends on the position of the collar l2 withrespect tothe collars 8 and 9.

It is apparent that such ay device could be put to many .usos 'and thatothen tools could be used interchangeably` with the bit 1.

It isals'o apparent that various changes could be made withoutdepartingrorn the spirit of the invention and, for this reason, l do notwish to he'lirnited only to the details illustrated. Y i

Having thus described my invention, what l I claim as new therein anddesire to secure by Letters Patent, is:

vA device ot the class described comprising a bit stock having avsoclretat one end and a shank extended from its opposite end and having a bitapplied to saidsocket vand a lhandle member rotatablyY xed on the shank,

collars `lixed in spaced relation on the stock having oppositely facingratchet teeth on their adjacent edges, a collar rotatable on the stockbetween the first-named collars and having teeth at its opposite edgesseparately l engageable with the teeth of the latter, a

laterally directed handle pivotally xed to the said rotatable collarwhereby the latter may be actuated to engage the iXed collars l upon theratchet operating handle movable to lock the first-named handle withinthe pocket and a head fixed on the shank to engage the ratchet operatinghandle to lock the stock against rotation thereon.

Signed at Seattle, Washington, this 9th day of July 1921. y v

i ANDREW ANDERSON.;

